The South Pacific island chain held its caucus Tuesday.
Clinton won 73 percent of 223 votes cast to earn four of the six delegates at stake. Bernie Sanders picked up two delegates.
American Samoa is one of five U.S. territories that cast votes in primaries and caucuses to decide the Democratic presidential nominee, even though those residents aren't eligible to vote in the November general election.
The island chain has a population of 54,000 and is about a six hour flight from Hawaii.